package com.hmdp.Interceptor;

import cn.hutool.core.bean.BeanUtil;
import cn.hutool.core.util.StrUtil;
import cn.hutool.http.HttpStatus;
import com.hmdp.dto.UserDTO;
import com.hmdp.entity.User;
import com.hmdp.utils.RedisConstants;
import com.hmdp.utils.UserHolder;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import java.util.Map;
import java.util.concurrent.TimeUnit;

import static com.hmdp.utils.RedisConstants.LOGIN_USER_KEY;
import static net.sf.jsqlparser.util.validation.metadata.NamedObject.user;

/**
 * 登录拦截器
 * @author jay
 */
public class LoginInterceptor implements HandlerInterceptor {


    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        // 判断是否有用户
        if(UserHolder.getUser() == null){
            // 没有则拦截，返回401状态码
            response.setStatus(HttpStatus.HTTP_UNAUTHORIZED);
            return false;
        }
        return true;
    }

}
